Christina says that the formula to find the area of a rectangle is base times height divided by two. (bxh/2). Lamark says that the correct formula is length times width. (lxw). Who is correct? Why?
Lamark is correct because the formula bxh/2 is the formula for finding the area of a triangle.
100
Find the perimeter of the rectangle with a length of 8cm and a width of 5 cm.
P = 26cm
100
Find the area of a rectangle that has a length of 6cm and a width of 5cm.
A = 30 cm2
100
The classroom is getting new floor tile. If the room has a length of 30ft and a width of 25ft. How much tile will the room need?
The room will 750sq.ft (750 ft2) of tile.
100
What is a triangle with a right angle called?
A Right triangle
200
Which is the formula for finding the area of a parallelogram?
a) A = lxw
b) A = bxh
c) A = bxh/2
Area = base times height (A = bxh)
200
Find the perimeter of a parallelogram that has a base of 8in, a height if 15in and a length of 10in.
P = 36in
200
Find the area of a square with side length 7 in.
A = 49 in2
200
The area of a rectangular rug is 15 square feet. It is 3 feet wide. What is the perimeter?
P =16 feet
200
a parallelogram has a length of 10in, a base of 9, and a height of 13. What is the perimeter?
P = 38in
300
How do you find the perimeter of a triangle? rectangle? square? triangle?
To find the perimeter of any of these you add up all the sides.
300
Find the perimeter of a right triangle with one side length 6cm, one side length 4cm, and one side length 12cm.
P = 22cm
300
Find the area of a right triangle with a base of 7cm and a height of 8cm.
A = 28 in2
300
Mary needs to fence around her backyard. The length of her backyard is 5m and the width is 8m. If fencing comes in sections of 3m how many sections does Mary need to buy?
9 sections
300
Can a triangle with a height of 13cm a base of 10cm and the side lengths of 11cm, and 9cm, have a perimeter of 34cm? Explain
No, it can not because the side lengths total 30cm.
400
What is the formula for area of a square?
Area = length times width (A = lxw)
400
Find the perimeter of a triangle if it has a base of 6m, a height of 8 m, and two side lengths that equal 3m.
P = 12m
400
Find the area of a triangle with a base of 9cm, one length of 7cm, another of 6cm, and a height of 12cm.
A = 54cm2
400
Mary needs to fence around her backyard. The length of her backyard is 5m and the width is 8m. If fencing comes in sections of 3m and each section costs 5 dollars. How much money will Mary spend?
Mary will spend $45.00
400
A rectangluar table top has a perimeter of 32cm. could could the lengthof the table be 8cm? Explain
No, it could not because 8 times 4 is 32, that would make the table a square,not a rectangle.
500
The formula for area of a triangle?
Area = base times height divided by 2 (A = bxh/2)
500
Find the perimeter of a square with a side length that equal 8in.
P= 32 in
500
Find the area of a parallelogram with a base of 20in, a length of 18in and a height of 30 in.
A = 600 in2
500
Fred wants to carpet his bedroom that measures 12 ft by 15 ft. The carpet costs $10 per square foot installed. How much will it cost Fred to carpet his bedroom?
It will cost fred $1800.00 to carpet his room.
500
Alexis wants to buy wood to make a frame for her
picture. Her picture is a 12in by 10in rectangle.
What is the total length of the wood strips she
will need for her project?